Channel balance replacement part

Home Owner from San Clemente, CA
Jun 25, 2021 3:08 pm
This channel balance is for a non tilt window. Could you please help me identify which part this is? It's 9/16" wide and has the marking '33 3BSI NG' on it.
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2 Replies

Casey from SWISCO
Jun 29, 2021 2:25 pm


Hello,
With this combination of attachments, you could have either an S380-34 or S385-34 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need 3330 spring strength options for your replacement balances.
Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.
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